Punching-machine



A. SPEAR.

PUNCHING MACHINE.

APPLICATION FILED SEPT. 16. 1918.

1,382,687. PatentedJuneZS, 1921. v E l: s SHEETS-SHEET l.

" A. SPEAR.

PUNCHING MACHINE.

APPLICATION FILED SEPT. I6. 1918.

1,382,687, Y PatentedJune 28, 1921'.

3 SHEETS-SHEET 2.

A.' SPEAR.

PUNCHING MACHINE.

APPLICATION FILED SEPT. 16. 1918.

.Patented June 28, 1921.

3 SHEETSSH-EET a.

PATENT OFFICE.

ARTHUR SPEAK. OF CHICAGO, ILLINOIS.

PUNCHING-MACHINE.

Specification of Letters Patent.

Patented June 28, 1921.

Application filed September 16, 1918. Serial No. 254,289.

To (177 whom it may concern lle it known that I ARTHUR SPEAK, citizen of the United States. residing at Chicago, in the count of Cook and State of Illinois, have invented a certain new and useful Tmprovenient in Punching-Machines, of which the following is a full, clear, concise, and exact description.

My invention relates to punching -ma-- chines, the invention being of particular service in the formation of nut castellating machines, though the invention is not to be limited to this particular use.

The invention has for one of its objects the provision .of improved mechanism whereby the nut to be castellated or other object to be punched may be turned to present fresh portions thereof for the punching operation.

The invention has for another of its objects the provision of work holding means including a Work engaging member formed of a plurality of relatively movable sections, each of the sections being preferably spring pressed into engagement with the ObJQCt to be held thereby. This arrangement permits a plurality of objects that may slightly diifer in size to be firmly held in position while being operated upon.

The invention has further characteristics and will be fully explained in connection with the accompanying drawings showing the preferred embodiment thereof and in which Figure 1 is a view in elevation, partially in section, and generally taken on line 11 of Fig. 4; Fig. 2 is a sectional view on line 2-2 of Fig. 1; Fig. 3 is a view similar to Fig. 2 but showing parts in changed positions; Fig. 4 is a sectional view on line 4-4 of Fig. 2; Fig. 5 is a detail view on line 5-5 of Fig. 4; Fig. 6 is a perspective view of a nut castellated by the punching machine illustrated; Fig. 7 is a sectional view on line 7-7 of Fig. 2; Fig. 8 is a view generally similar to Fig. 7 but showing parts in changed position; Fig. 9 illustrates a modification of a part of the mechanism; and Fig. 10 is a sectional view on line 10-10 of Fig. 9.

Like parts are indicated by similar characters of reference throughout the different figures.

The head 1 is mounted upon a plunger 2 which is suitably operated by mechanism that need not be illustrated. This head carries a plurality of punching holders 3, each holder supporting a punch blade 4 in position to operate upon the nuts 5 that are to tical or working alinement therewith. The

member 6 is in the nature of a die which is inclined with respect to the line of movement of the punch so that the nuts to be castellated will be inclined with respect to the punches 4. When the punches descend they enter the bores of the nuts and move outwardly from the nuts to form castellating slots 7 therein. The wastemetal stripped from the nuts by the punches drops through the openings 8 in the die 6 and latterally through the openings 9 to the base 10 of the machine, on which base said die is supported by means of bolts 11. The openings 8 snugly receive the punches as they finish their strokes to prevent or reduce the formation of burs upon the exterior of the nuts.

A second member is provided for holding the nuts in engagement with the first member, this second member being preferably formed of a plurality of relatively movable sections 12. This second or upper member is disposed above the first member and has notch formations 13 therein (which, however, are absent in the structure of Figs. 9 and 10) for receiving sides of the nuts. Spring means are employed for pressing the upper member toward the lower member 6, this spring means desirably residing in a plurality of coiled springs 14 each individual to a section 12. Pins 15, disposed in slots 16 in the upper member 12, serve to limit the extent to which the springs may depress this upper member. Each notch 13 is desirably formed in but one section 12 so, that each spring 14 is capable of snugly holding a nut up'on the nut holding or supporting member 6 even though this nut may be smaller than its neighbors which are like wise snugly positioned. An object actuating member 17 is movable along the other members at the rear side of the row of nuts held therebetween. This ob]ect actuating member has object engaging formations in the nature of noses 18 whlch may be projected forwardly into the space between the nut holding members 6 and 12 and into the spaces between adjacent nuts, whereafter this member 17 is moved longitudinally of the nuts to push upon the same. The member 17, in addition to having one nose 18 for engagement with each nut being oper- 5 atcd upon, has a nut engaging formation similar to the rest for feeding a new nut to the space between the holding. members, each time the punching operation has been completed, the new nuts being dropped from a chute 19 uponthe holding member (5.

In each pushing operation of the actuating member 17 which occurs after each punching operation, the nuts operated upon are pushed forwardly toward the discharge, left hand, end of the machine. The leading nut of the row is then discharged (Fig. 8) and the remaining nuts which have been operated upon are advanced into engagement with succeeding holding sections 12 of the upper holding member. In thus being advanced, the nuts are turned so that new sides thereof are presented to the punches for the ensuing punching operation. The nut which is moved from the first holding section 12 of the series of these sections into engagement with the next succeeding section 12, is replaced by the fresh nut that is advanced from the chute 19 to the first holding section, this fresh nut for the first time being subject to a punching operation. Following this nut along its course, and because of the rotation imparted thereto as it is pushed along its course with its companions, it will be noted that it is given the second punching operation upon a second of its sides when held by the second holding section 12, the third punching operation when held by the third holding section, the fourth operation when held by the fourth holding section, the fifth operation when held by the fifth holding section and the sixth operation when held by the sixth holding section, from which latter holding section it is discharged as indicated in Fig. 8 when the last punching operation thereon has been finished. There are thus only six holding sections in the punching machine illustrated inasmuch as the machine shown is designed for operation upon hexagonal nuts. Nuts or other objects having a lesser or greater number of sides would be operated upon by a punching machine having a corresponding number of holding sections 12 or object engaging formations 13.

It will be seen by reference to Figs. 7 and 8 that the notch 13, in any holding section 12 from which a nut is being punched, is effective in causing the nut to be turned to present new faces thereof to the holders preparatory to new punching operations if the nut happens to be moved into engagement ,with a succeeding holding section or merely to be dropped upon the incline 20 if the nut has passed beyond the final holding section after having had all the punching operations performed thereon. T he actuating member 17 is desirably given a movement by the cam bar 17 moving with the head 1, which follows a rectangular path that is in the plane of the axes of the nuts so thatafter this actuating member has pushed the row of nuts with the effects which have been described, it may be rearwardly withdrawn and thereafter restored to its initial pushing position for a succeeding pushing operation. It will be observed that the cam bar 17' has a cam formation 17 upon its front side and a cam formation 17 upon its rear side. These cam formations and the bar engaging the same are in snug sliding fit within an opening formed in the actuating member 17 when the bar 17 is correspondingly positioned. The forward cam 17 serves to move the actuating member 17 forwardly to the position illustrated in Fig. 2 and the rear cam 17 serves to withdraw the actuating member 17 rearwardly to allow the noses 18 to pass back and clear of the noses as illustrated in Fig. 3.

Referring to the construction shown in Figs. 9 and 10, the not holding and turning formations, instead of being in the nature of notches provided upon the upper holder, are in the nature of pins 21 provided upon the lower holder. shown in Figs. 9 and 10 have parts that are similar to parts shown in the remaining figures, similar parts being givensimilar char- .cters of reference.

While I have herein shown and particularly described the preferred embodiment of my invention I do not wish to be limited to the precise details of construction shown as changes may readily be made without departing from the spirit of my invention as defined in the appended claims but having thus described my invention I claim as new and desire to secure by Letters Patent the following 1. A punching machine including a plurality of punches and two object engaging members for holding a plurality of objects therebetween, one member serving to maintain the objects in position while being operated upon by the punches and one member being formed of relatively movable sections movable toward and from the other member.

2. A unching machine including a plurality o punches; two object engaging members for holding a plurality of objects therebetween, one member serving to maintain the objects in position while being operated upon by the punches and one member being formed of relatively movable sections movable toward and from the other member;

and spring means pressing said sections individually toward the complemental member.

3 A punching machine including a plurahty of punches; two object engaging Other parts of the structure of reciprocable members for holding a plurality. of objects therebetween, one member serving to maintain the-objects in position while being 'op-, erated u on by the unches and the other member ing forme of relatively movable sections movable toward and from the complemental member; and 'siring means ressmg said sections indivi ually towar the complemental member.

-4. A punchin machine including a plurality of punc es; two obiect engaging members for holding a row 0 objects therebetween, one of said members having formations for turning said objectsto present new portions to the punches; and an object actuating member movable along the first aforesaid members and having formations thereon for engaging the ob ects to move them along the first afor'esai members to turn each object into engagement with the succeeding object turning formation.

5. A punchin machine including a plurality of puncies; two object enga 'ng members, one movable from and towar the other, for holding a row of objects therebetween, one of said members having formations for turning said objects to present new portions to the punches; 5 ring means for pressing one of said mem other; and an object actuating member movable along the first aforesaid members and having formations thereon for en agin the objects to move them along'the rst a oresaid members to turn each object into ongagement with a succeeding object turning formation.

6. A unching machine including a plurality punches; two object engaging members for holding a row of objects therebetween, one of said members having formations for turning said objects to present new portions to the punches; and mechanism for moving the objects along the aforesaid members to turn each object'into engagement with a succeeding object turning formation.

7. A punching machine including a plurality of punches; twoobject engaging members, one movable from and toward the other, for holding a row of. objects therebetween, one of said members having formations for turning said objects to present new portions to the punches; spring means for pressing one of said members toward the other; and mechanism for moving the objects along the aforesaid members to turn each object into engagement with a succeeding object turning formation.

8. In a nut castellating machine, a series unches commensurate with the number of sldes of the nut to be castellated, means for positioning the nut successively beneath the first punch in the series for engagement thereby, and automatic means for progressively moving the nuts from the first position beneath the several rs toward the punches in succession and indexin them in such movement whereby the sai punches produce one notch for each side of the nut.

9. A unching machine including a plu-, rality o punches, two object enga ing members for positioning a row of Q jects, 'one rality of punches, two object en aging members movable from and towar each other for positioning a row of objects, one of said members having formations for turning said objects to present new portions to the punches, and mechanism for effecting relative movement between the row of objects and the member having the turning formations to turn the objects to present new portions thereof to the punches.

11. A punching machine including a plurality of punches, two object enga 'ng members one movable from and towar the other for ositioning a row of objects to be unclied, one of said members having ormations for turning said objects to present new portions to the .punches, spring means for pressing one of said members toward the other, and mechanism for effecting relative movement between the row of objects and the member having the turning formation to turn the objects to present new portions thereof to the punches.

12. A punching machine including a plurality of punches, two object engaging members for positioning a row of objects to be punched, and an ,ob'ect actuatin member movable along the rst aforesai member and having formations thereon for engaging the ob ects to turn each object to present a new part thereof to a punch.

13. A punching machine including a plurality of punches, two object engaging members one movable from and toward the other, for positioning a row of. objects to be punched, and an object actuatin member movable along the first aforesai members and having formations thereon for engaging the objects to turn each object to present a new part thereof to a punch.

14. A punching machine including a plurality of punches, two object engaging members one movable from and toward the other for positioning a row of objects to be punched, spring means for pressing one of said members toward the other, and an object actuating member movable along the first aforesaid members and having formations thereon for engaging the objects to turn each objlfct to present a new part thereof to a punc a 15. A punching machine including a plu-. rality of punches, two object engaging members 'for positioning a row of ob ects to be punched a multi-punch associated therewith and mechanism'for moving the objects from punch to punch and turning them as they are moved to present new portions to the punches. v

16. A punching machine including a plurality of punches, two object-engaging mem-. bers for positiomng a row of ob ects to be punched, and mechanism for moving the obfor punc ed, spring means for ressing one of said members toward the ot er, and mechanism for turning the objects to present new portions to the successive punches.

18. A punching machine including a plurality of punches, two object engaging members for positioning a row of objects, one of said members servlng to maintain the objects in position while being operated upon by the punches, and mechanism for turning the objects to resent new portions to'the jects from punch to punch and turning them \SQCCGSS'IVO punc es.

to present new portions .to the successive punches.

17. A punching machine including a plurality of punches, two object enga ing members one movable from and towar the other i 'In witness whereof, I hereunto subscribe 111: name this tenth day of September A. D.,

ARTHUR SPEAK.

positioning a row of objects to be 

